WorksheetsEcosystems Assessment
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
What direction is the movement of the energy in a food web?
a)
consumer to producer
b)
producer to consumer
c)
decomposer to producer
d)
decomposer to consumer
2.
Within a cave environment, bat waste products, called guano, are decomposed by organisms such as fungi and bacteria. These are then eaten by creatures such as flatworms. Larger animals like salamanders eat flatworms. Which correctly represents the energy flow described?
a)
Fungi → Bacteria → Salamanders → Guano
b)
Bats → Guano → Flatworms → Salamanders
c)
Salamanders → Fungi → Bacteria → Flatworms
d)
Guano → Bacteria → Flatworms → Salamanders
3.
How does an ecosystem benefit when leaves fall from a tree and decompose on the soil?
a)
Nutrients are released into the soil.
b)
Soil erosion decreases.
c)
Carbon dioxide is absorbed by the soil.
d)
Soil temperature decreases.
4.
Which process will directly result in organic matter being added to the soil?
a)
water freezing in cracks of rocks
b)
glaciers carving out a valley
c)
river water eroding the banks of a stream
d)
bacteria breaking down dead matter
5.
Which best describes the energy relationships between grass, rabbits, and the Sun?
a)
Both the rabbits and the grass make food from sunlight.
b)
Both the rabbits and the grass use energy from sunlight.
c)
The rabbits make food from sunlight and grass does not.
d)
The grass uses energy from sunlight and rabbits do not.
6.
A relationship where one organism is benefiting from an interaction from another organism is called?
a)
Human Impact
b)
Symbiosis
c)
Predator
d)
Ecosystem
7.
Where one organism benefits, other is not harmed nor hurt is called?
a)
Mutualism
b)
Commensalism
c)
Parasitism
8.
When both organisms benefit from each other, it's called what?
a)
Mutualism
b)
Commensalism
c)
Parasitism
9.
Where one organism benefits and the other is harmed is called what?
a)
Mutualism
b)
Commensalism
c)
Parasitism
10.
Which list shows the order in which energy most likely flows through this food chain?
a)
Owl, Sun, Grass, Mouse
b)
Sun, Grass, Mouse, Owl
c)
Grass, Mouse, Owl, Sun
d)
Sun, Mouse, Owl, Grass
11.
The diagrams show different ways to represent food going from one organism to another. What do the arrows represent?
a)
It is meant to make it look nice and organized
b)
The arrows represent the movement of the energy in a food web
c)
The arrows have no meaning to them
12.
In which way do the plants receive nutrients?
a)
from leaves decaying in the soil
b)
from sunlight heating up the soil
c)
from wind blowing through the soil
d)
from insects crawling on top of the soil
13.
What is an abiotic factor that Bob would see in a garden?
a)
Plants
b)
Birds
c)
Insects
d)
Soil
14.
What is a biotic factor that Bob would see in a garden?
a)
Air
b)
Plants
c)
Soil
d)
Water
15.
Four students were asked where energy from food chains and food webs come from.
The students’ answers are shown in the chart.
Student 1-“Humans because they are top-level consumers.”
Student 2 -“Green plants because they are the only organisms that use photosynthesis.”
Student 3 -“Wind because it helps distribute seeds over long distances.”
Student 4 -“The sun because sunlight gives energy to almost every living thing on Earth.”
Which student provided the correct answer?
a)
Student 1
b)
Student 2
c)
Student 3
d)
Student 4
16.
How have humans impacts ecosystems? Give me specific examples of how humans negatively impact ecosystems and how humans can positively impact ecosystems.
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